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SHAREHOLDERS' EQUITY (Share Option Plans) (Narrative) (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Aug. 31, 2021 | Sep. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Options outstanding |  |  |  | 2,558 | 32,805 | 343,451 | 508,493
Period of directors service served |  |  |  |  |  | 5 years |
Percentage of acceleration of unvested equity |  |  |  |  |  | 50.00% |
RSU's [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Awards granted |  |  |  | 1,002,275 | 1,105,155 | 1,159,881 |
Awards outstanding |  |  |  | 2,211,100 | 2,223,043 | 2,013,613 | 1,599,296
2013 Plan [Member] | Employees and directors [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period |  |  |  | 3 years | 3 years |  |
Awards granted |  |  |  | 1,000,000.0 | 1,100,000 |  |
2013 Plan [Member] | Chief Executive Officer [Member] | Time Vested Restricted Shares Units [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting percentage | 33.00% | 33.00% | 33.00% |  |  |  |
Non-option equity awards granted | 80,000 | 109,000 | 129,000 |  |  |  |
Compensation cost |  | $ 5,000 | $ 3,900 |  |  |  |
2013 Plan [Member] | Chief Executive Officer [Member] | Performance-based RSU's [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Non-option equity awards granted | 132,000 | 163,000 | 129,000 |  |  |  |
2013 Plan [Member] | Chief Executive Officer [Member] | RSU's [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Awards granted | 31,000 |  |  |  |  |  |
Non-option equity awards granted | 6,000,000 |  |  |  |  |  |
Compensation cost | $ 1,000 |  |  |  |  |  |
2013 Plan [Member] | Chief Executive Officer [Member] | PSU’s [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Non-option equity awards granted | 120,000 |  |  |  |  |  |
2013 Plan [Member] | Chairman of the board of directors [Member] | Time Vested Restricted Shares Units [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting percentage | 33.00% | 33.00% | 33.00% |  |  |  |
Non-option equity awards granted | 10,300 | 16,000 | 20,000 |  |  |  |
Compensation cost | $ 300 | $ 300 | $ 300 |  |  |  |
2013 Plan [Member] | New other directors [Member] | Time Vested Restricted Shares Units [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period | 2 years | 2 years | 2 years |  |  |  |
Non-option equity awards granted | 4,300 | 5,000 | 5,000 |  |  |  |
Compensation cost | $ 900 | $ 900 | $ 600 |  |  |  |
2013 Plan [Member] | New other directors [Member] | Time Vested Restricted Shares Units [Member] | First Anniversary [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting percentage | 50.00% | 50.00% | 50.00% |  |  |  |
2013 Plan [Member] | New other directors [Member] | Time Vested Restricted Shares Units [Member] | Second Anniversary [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting percentage | 50.00% | 50.00% | 50.00% |  |  |  |

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